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-rw-r--r--include/linux/huge_mm.h8
-rw-r--r--include/linux/sched.h1
2 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 4fca5263fd42..9b9f65d99873 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -156,8 +156,8 @@ static inline bool is_huge_zero_pmd(pmd_t pmd)
return is_huge_zero_page(pmd_page(pmd));
}
-struct page *get_huge_zero_page(void);
-void put_huge_zero_page(void);
+struct page *mm_get_huge_zero_page(struct mm_struct *mm);
+void mm_put_huge_zero_page(struct mm_struct *mm);
#define mk_huge_pmd(page, prot) pmd_mkhuge(mk_pmd(page, prot))
@@ -220,9 +220,9 @@ static inline bool is_huge_zero_page(struct page *page)
return false;
}
-static inline void put_huge_zero_page(void)
+static inline void mm_put_huge_zero_page(struct mm_struct *mm)
{
- BUILD_BUG();
+ return;
}
static inline struct page *follow_devmap_pmd(struct vm_area_struct *vma,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6bee6f988912..348f51b0ec92 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -526,6 +526,7 @@ static inline int get_dumpable(struct mm_struct *mm)
#define MMF_RECALC_UPROBES 20 /* MMF_HAS_UPROBES can be wrong */
#define MMF_OOM_SKIP 21 /* mm is of no interest for the OOM killer */
#define MMF_UNSTABLE 22 /* mm is unstable for copy_from_user */
+#define MMF_HUGE_ZERO_PAGE 23 /* mm has ever used the global huge zero page */
#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)